安塞油田王窑区提高采收率工艺技术应用探讨

EOR technology application in Wangyao area of Ansai

王窑区是安塞油田最早开发的主力区块,属典型的"三低"油藏,经过二十年的注水开发,进入中高含水开发阶段,进一步提高采收率已急为迫切。结合水驱规律和剩余油分布规律研究成果,开展以立足一次井网的堵水调剖、微生物驱油和二次加密调整现场试验,在前期试验及国内外工艺技术适应性分析的基础上,进一步完善和丰富加密调整、堵水调整、微生物驱油等提高采收率技术系列,探索安塞特低渗油田持续稳产的新途径。

Wangyao area of Ansai oilfield are the earliest development of the main block, which is typical of the ＂three low＂ reservoir,after 20 years of development and into high water cut stage in further EOR.Combines water drive law and remaining oil distribution law research results, carried out to based once wells network of blocking water adjustable profile, and microbial drive oil and II times encryption adjustment site test, in early test and the both at home and abroad process technology adaptability analysis of basis,further perfect and rich encryption adjustment, and blocking water adjustment,and microbial drive oil, improve harvest rate technology series,exploration Anseth low permeability oilfield continued stable of new way.